如何隐藏隐藏图表的工具提示 - Kendo Angular

Question

我在单击系列项目时使用 [hidden] 属性隐藏图表。但在用户将光标从点击区域移开之前，工具提示是可见的。

有什么方法可以隐藏工具提示。

stackblitz 重现问题：

https://stackblitz.com/edit/angular-czxxqb?file=app/app.component.ts

---

import { Component } from '@angular/core';

@Component({
    selector: 'my-app',
    template: `
      <div [hidden]="hidechart">
        <kendo-chart
            [categoryAxis]="{ categories: categories }"            
            (seriesClick)="onSeriesClick($event)"
            (seriesHover)="onSeriesHover($event)">
            <kendo-chart-title text="Gross domestic product growth /GDP annual %/"></kendo-chart-title>
            <kendo-chart-legend position="bottom" orientation="horizontal"></kendo-chart-legend>
            <kendo-chart-tooltip format="{0}%"></kendo-chart-tooltip>
            <kendo-chart-series>
                <kendo-chart-series-item *ngFor="let item of series"
                    type="line" style="smooth" [data]="item.data" [name]="item.name">
                </kendo-chart-series-item>
            </kendo-chart-series>
        </kendo-chart>
        </div>
        <event-log title="Event log" [events]="events"></event-log>
    `
})
export class AppComponent {
    public events: string[] = [];
    public hidechart: boolean = false;
    public series: any[] = [{
            name: 'India',
            data: [3.907, 7.943, 7.848, 9.284, 9.263, 9.801, 3.890, 8.238, 9.552, 6.855]
        }, {
            name: 'Russian Federation',
            data: [4.743, 7.295, 7.175, 6.376, 8.153, 8.535, 5.247, -7.832, 4.3, 4.3]
        }, {
            name: 'Germany',
            data: [0.010, -0.375, 1.161, 0.684, 3.7, 3.269, 1.083, -5.127, 3.690, 2.995]
        }, {
            name: 'World',
            data: [1.988, 2.733, 3.994, 3.464, 4.001, 3.939, 1.333, -2.245, 4.339, 2.727]
        }];

    public categories: number[] = [2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011];

    public onRender(): void {
        this.log('render');
    }

  

    public onSeriesClick(e): void {
        this.log('seriesClick', e);
        this.hidechart = true;
    }

    public onSeriesHover(e): void {
        this.log('seriesHover', e);
    }

    private log(event: string, arg: any = null): void {
        this.events.push(`${event}`);
        console.log(arg);
    }
}

Answer 1

首先获取图表的引用

@ViewChild(ChartComponent, { static: true })
public chart: ChartComponent;

然后，在隐藏图表之前，调用this.chart.tooltipInstance.hide();

public onSeriesClick(e): void {
    this.chart.tooltipInstance.hide();
    this.hidechart = true;
}